Seam-gage for sewing-machines



W. P. BROSIUS.

SEA-M GAGE FOR SEWING MACHINES.

No. 244,739. Patented July 26,1881.

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UNITED STATES PATENT OFF WILLIAM P. BROSIUS, on :aIoHMoNI), vIneINIA, ASSIGNOR TO BENJ MIN F. BRosIUs, on HARPEBS FERRY, WEST VIRGINIA.

" SEAM-GAGE FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 244,739, dated July 26, 1881.

Application filed January 8, 1880.

To all whom it may concern: Be it known that I, WILLIAM P. BROSIUS, 0

Richmond, in the county of Henrico and State ofVirginia, have invented a new and Improved Seam Gage for Sewing -Machines; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification, in which Figure 1 is a plan view of the devices lookin g down upon the work-plate of the sewingmachine, and showing the two sections of a quarter of a shoe about to be connected by the first row of stitching. Figs. 2 and 3 are respectively. a plan and'edge view in detail of the device.

The object of my invention is to provide a seam-gage for determining the amount of lap in sewing together two pieces of leather in the manufacture of boots and shoes, or in connecting parts of any othermateriahso that a uniform amount of lap is preserved and the line of stitching kept at the proper distance from and in parallel position with the edge. It is an improvement in that form of gage in which a guide-face is arranged to rest in the plane of one of the sections of work and bear against its edge, and a second guide-face is arranged in the plane of the other sections of the work and is arranged to bear against the other edge, and the distance between which two faces may be varied to regulate the width ofthe lap.

In the drawings, Arepresents the work-plate of the sewing-machine, upon which, to the left of the needle, is attached the base-plate B ofthe gage, the said base-plate being slotted at a and secured to the work-plate by a screw, 1). The end 0 of the base-plate approaches closely to the needle, (shown at 00,) but stops short of the same a little to the left of the line of stitching, and is rounded so-as to form the gage stop or guide 0 for the edge of the lower piece of material. Upon the edge of the baseplate B of this gage is arranged a thin metal tongue, 0, whose end 01 is thickened and formed into a raised gagestop, which rests above the thickness of the lower piece of material and forms a gage stop or guide for the edge of the top piece of material. The tongue carrying this stop, it will be seen, extends between the two pieces of material just in front of the needle, and at its other end is thickened and connected adjustably to the base-plate by a slot, c, and set-screw f, a lug, g, on said tongue projecting down through a slot, h, in the lower plate, so as to hold the tongue against turning on its screw f, and cause it to be adjusted always in a straight line. It will thus be seen that the distance between the left-hand edge of stop (1 and the right-hand edge of stop 0 determines the width of the lap, and this width may be varied by adjusting the tongue on the base-plate and the base-plate on the work-plate by means of the set-screws, as described.

' For better illustration of the operation of the device I have shown two sections of the quarter of a shoe in position to be connected at the back seam. Of these sections the bottom piece on the right has its edge resting against the stop 0, while the top piece on the left covers the whole of the attachment, except the end of the tongue carrying stop (1, and has its edge resting against the latter. Now, although the lower edge is obscured by the top piece, so long as the edges are kept against their gagestops the two pieces are united with an equal lap.

Having thus'described my invention, what I claim as new is The combination, with the base-plate, B, having a stop or guide, 0, and a slot, h, of the tongue 0, having its end extended beyond the end of the baseplate and provided with upwardly-projecting lug'd, and having its body portion adjustably connected to the base-plate by a set-screw, f, and lug g, substantially as described.

WILLIAM. PARKIsoN BROSIUS.

Witnesses:

GHAs. I. WALLACE, WM. P. SEVY. 

